The NEMO Switchback is an accordion-style closed-cell foam sleeping pad that can be used as an ultralight pad by itself or to augment the warmth of a second sleeping pad when sleeping outdoors in colder weather. It’s quite similar to the Therm-a-Rest Z Lite Sol sleeping pad, but made with modern materials and precisely molded. Like the Z Lite Sol, one side of the pad is coated with aluminum to reflect your body heat back at you and keep you warmer.
Specs at a Glance
- Type: Closed-Cell Foam
- R-Value: 2 (updated January, 2020)
- Thickness: 0.9 in / 2.3 cm
- Weight: 14.5 oz / 415 g
- Length x width: 72 x 20 in / 183 cm x 51 cm
- Packed Size: 5 x 5.5 x 20 in / 13 x 14 x 51 cm
- Color: Pumpkin
If you’ve never owned an accordion-style foam pad, they’re a useful piece of backpack gear to have around because they can serve so many purposes. I’ve used them as virtual frames in frameless backpacks, extra insulation under an inflatable sleeping pad, sit pads to keep my bum warm and dry, hammock insulation, winter stove insulation, hot water bottle insulation, insulated seats for pack rafts, even as shims to keep air conditioners from falling out of windows. You just need a sharp pair of scissors and your imagination to figure out ways to use them.
What makes the Switchback Different?
The Switchback’s main competitor is the legendary Therm-a-Rest Z Lite sleeping pad. That accordion-style foam sleeping pad has been around for as long as I can remember. The Therm-a-Rest Z Lite Sol is coated on one side with an aluminum film like the Switchback.
The Switchback takes everything that’s good about that pad and makes it better. Well, almost everything. The Switchback is a bit thicker, for instance, measuring 0.9 inches thick compared to the Z Lite Sol’s 0.75 inch thickness. It also weighs about a half ounce more at 14.5 oz, compared to the Z Lite Sol, which weighs 14 oz. Despite that, the Switchback folds up more compactly because the raised portions of the pad slot in better with the recessed areas. This makes it easier to strap to the side of your backpack or under a floating lid.
The Switchback is also a good deal more comfortable than a Z Lite Sol, perhaps enough to convince you to switch from an inflatable pad to a foam pad again. NEMO uses two types of foam in the Switchback, a softer foam that comes in contact with your body and a more durable foam that reduces pad compression over time, while Therm-a-Rest uses just one type of foam in the Z Lite Sol. Both pads are also comparable in price: a 72″ NEMO Switchback retails for $50, while the regular length Z Lite Sol costs $45, and is available in a variety of lengths.
The NEMO Switchback and the Therm-a-Rest Zlite have R-values equal to 2.0, based on the new sleeping pad temperature rating standard.
An R-value of 2-3 is good for 3 season use, while an R-value of 5-6 is good for sleeping on snow. Sleeping pad R-values are also additive, so you can stack two sleeping pads to create enough insulation to sleep on snow in winter.
The NEMO Switchback is actually a well-engineered and very comfortable closed-cell foam sleeping pad, despite its lack of an R-value rating. While it’s not as comfortable as an inflatable sleeping pad, it is definitely competitive with the Therm-a-Rest Z Lite Sol in terms of design, manufacturing, and materials. It’s really about time that someone went head-to-head with Therm-a-Rest when it comes to closed-cell foam sleeping pads. While the NEMO Switchback is in many respects a knock-off of the Z Lite Sol, it is a comparable knock-off, which is a pretty impressive feat, if you think about the engineering and design that goes into making high quality foam products on an industrial scale.
Disclosure: NEMO provided the author with a sleeping pad for this review.
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